Rigorous testing has shown that concrete with cellulose nanofibrils performs exceptionally well under stress.
Ugur Kilic, a University of Virginia civil engineering Ph.D. student, keeps an eye on the concrete printer in Professor Osman Ozbulut’s lab at UVA.
Researchers from the University of Virginia School of Engineering and Applied Science have presented a novel solution: cellulose nanofibrils , a plant-based wonder material. “We’re dealing with contradictory objectives,” Ozbulut said. “The mixture has to flow well for smooth fabrication, but harden into a stable material with critical properties, such as good mechanical strength, interlayer bonding and low thermal conductivity.”
Interestingly, microscopic examinations of the hardened samples indicated improved bonding and overall structural integrity.
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